Excel 2003 to 2007

Originally Posted by SEAEngineer

Hello,

Some equations do not seem to be working for workbooks created in 2003 and opened with 2007.

Is there any validity to this incompatibility? What are some specific things to look out for when making the switch?

Any comments would be appreciated.

Open Excel 2003 file in Excel 2007 and Save as it as Excel 2007 file, close the file and reopen it. It may solve your problem.